/*- $FreeBSD: releng/11.2/sys/kern/kern_condvar.c 315386 2017-03-16 07:10:08Z mjg $
 * Copyright (c) 2000 Jake Burkholder <jake@freebsd.org>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifdef USB_GLOBAL_INCLUDE_FILE
#include USB_GLOBAL_INCLUDE_FILE
#include "los_event.h"
#include "time.h"
#endif

extern UINT32 OsEventWriteOnce(EVENT_CB_S *pstEventCB, UINT32 uwEvents);

int cv_timedwait(struct cv *cv, struct mtx *mtx, int tw_ms)
{
    struct timespec abstime;

    abstime.tv_sec = tw_ms/MSEC_PER_SEC;
    abstime.tv_nsec = (tw_ms%MSEC_PER_SEC)*NSEC_PER_MSEC;
    return pthread_cond_timedwait(cv,mtx,&abstime);
}

int cv_signal(pthread_cond_t *cond)
{
    int ret = 0;

    if (cond == NULL) {
        return EINVAL;
    }
    ret = OsEventWriteOnce(&(cond->event), 0x01);

    if (ret != 0) {
        return EINVAL;
    }

    return ret;
}

int cv_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) /*lint -e455 -e454*/
{
    int ret = 0;

    if (cond == NULL || mutex == NULL) {
        return EINVAL;
    }

    (void)pthread_mutex_lock(cond->mutex);
    if (cond->value == -1) {
        cond->value = 0;
        ret = LOS_EventInit(&(cond->event));
        if (ret != LOS_OK) {
            (void)pthread_mutex_unlock(cond->mutex);
            return EINVAL;
        }
    }
    (void)pthread_mutex_unlock(cond->mutex);

    if(pthread_mutex_unlock(mutex) != ENOERR){
        PRINTK("%s %d\n",__FUNCTION__,__LINE__);
    }

    ret = LOS_EventRead(&(cond->event), 0x0f, LOS_WAITMODE_OR | LOS_WAITMODE_CLR, LOS_WAIT_FOREVER);

    if(pthread_mutex_lock(mutex) != ENOERR){
        PRINTK("%s %d\n",__FUNCTION__,__LINE__);
    }

    return ret;
} /*lint +e455 +e454*/

int cv_broadcast(pthread_cond_t *cond)
{
    int ret;

    if (cond == NULL) {
        return EINVAL;
    }

    ret = LOS_EventWrite(&(cond->event), 0x01);
    if (ret != 0) {
        return EINVAL;
    }

    return ret;
}
